package com.vkejun.wjs.utils;

import android.content.*;
import android.graphics.*;
import com.bumptech.glide.load.engine.bitmap_recycle.*;
import com.bumptech.glide.load.resource.bitmap.*;

// Glide绘圆图
public class GlideCircleTransform extends BitmapTransformation
{
    public GlideCircleTransform(Context context)
	{
        super(context);
    }
    @Override
    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight)
	{
        return circleCrop(pool, toTransform);
    }
    private Bitmap circleCrop(BitmapPool pool, Bitmap source)
	{
        if (source == null) return null;
        int size = Math.min(source.getWidth(), source.getHeight());
        int x = (source.getWidth() - size) / 2;
        int y = (source.getHeight() - size) / 2;
        Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);
        Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);
        if (result == null)
		{
            result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
        }
        Canvas canvas = new Canvas(result);
        Paint paint = new Paint();
        paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
        paint.setAntiAlias(true);
        float r = size / 2f;
        canvas.drawCircle(r, r, r, paint);
        return result;
    }
    @Override
    public String getId()
	{
        return getClass().getName();
    }
}

